The Unarchiver - Get the top application for archives on Mac. It's a RAR extractor, it allows you to unzip files, and works with dozens of other formats.
9 ZIP - 9 Zip makes it easy to compress and decompress the Zip file.
Explzh for Windows - Powerful explorer-like archive software for Windows.
NanaZip - NanaZip is an open source file archiver intended for the modern Windows experience
Engrampa - A file archiver for MATE, based on File Roller from GNOME 2 http://www.mate-desktop.org/
BreeZip - Free Windows unarchive tool that supports many different kinds of archive files.